From Chapter 6 ("Our One and Only Commandment") of Subtle Sound: The Zen Teachings of Maurine Stuart:
... Don't even think about Buddhism. The true Buddhist never says, "I am a Zen Buddhist." We are people who are practicing this universal principle with everybody in the whole cosmos. There is no label, no separation, no statement like "I am Buddhist, he is Christian." True Buddhism embraces the whole universe, without a single label. You must have your own experience of the study and practice of Buddhism, not think thoughts that have been given to you by anybody else, including myself. Forget everything I have said. Depend on yourself. Your own experience of your inner self is what this is about.